High Seas Forecast
Issued by NWS

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000
FZPN40 PHFO 181645
HSFNP

HIGH SEAS FORECAST
NATIONAL WEATHER SERVICE HONOLULU HI
1700 UTC THU SEP 18 2014

SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT
OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN
TWICE THE SIGNIFICANT WAVE HEIGHT.

THIS HIGH SEAS FORECAST USES 1-MINUTE AVERAGE WINDS WHICH MAY BE
HIGHER THAN 10-MINUTE AVERAGE WINDS.

SECURITE

NORTH PACIFIC EQUATOR TO 30N BETWEEN 140W AND 160E

SYNOPSIS VALID 1200 UTC SEP 18 2014.
24 HOUR FORECAST VALID 1200 UTC SEP 19 2014.
48 HOUR FORECAST VALID 1200 UTC SEP 20 2014.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.LOW 12N152W 1010 MB MOVING NW SLOWLY. TROUGHS FROM LOW TO 11N146W
AND FROM LOW TO 09N160W. ISOLATED MODERATE TSTMS WITHIN 180 NM OF
LOW AND TROUGHS.
.24 HOUR FORECAST LOW 13N154W 1011 MB. TROUGHS FROM LOW TO 11N146W
AND FROM LOW TO 09N160W.
.48 HOUR FORECAST LOW DISSIPATED. TROUGH 11N146W 13N154W 09N160W.

.LOW 13N143W 1010 MB MOVING W SLOWLY. TROUGH FROM LOW TO 11N146W.
ISOLATED TSTMS WITHIN 120 NM OF LOW.
.24 HOUR FORECAST LOW 12N145W 1011 MB. TROUGH FROM LOW TO 11N146W.
.48 HOUR FORECAST LOW AND TROUGH DISSIPATED.

.LOW 09N166W 1011 MB MOVING SW SLOWLY. TROUGHS FROM LOW TO 09N160W
AND FROM LOW TO 06N169W.
.24 HOUR FORECAST LOW DISSIPATED. TROUGH 09N160W 10N165W 06N169W.
.48 HOUR FORECAST TROUGH LITTLE CHANGE.

.WEAKENING FRONT 22N140W 21N146W MOVING SE SLOWLY.
.24 HOUR FORECAST FRONT DISSIPATED.

.TROUGH 12N174W 05N179E MOVING W 10 KT. ISOLATED MODERATE TSTMS
WITHIN 300 NM OF TROUGH.
.24 HOUR FORECAST TROUGH 10N177W 04N173E.
.48 HOUR FORECAST TROUGH 10N178E 05N173E.

.TROUGH 16N166E 09N170E MOVING W SLOWLY. SCATTERED MODERATE TO
STRONG TSTMS WITHIN 180 NM OF TROUGH N OF 14N.
.24 HOUR FORECAST TROUGH 17N164E 08N169E.
.48 HOUR FORECAST NEW LOW 10N165E 1009 MB. TROUGH 14N161E TO
LOW TO 08N170E.

.RIDGE FROM 30N173E TO 27N160E NEARLY STATIONARY.

.WINDS 20 KT OR LESS AND SEAS 8 FT OR LESS ENTIRE AREA.

.ISOLATED MODERATE TSTMS FROM 03N TO 05N BETWEEN 173E AND 170W.

$$
.FORECASTER POWELL. HONOLULU HI.





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